STM32WB55 freertos low power consumption

Modify app_conf.h to
open the low-power support macro

/**
 *  When set to 1, the low power mode is enable
 *  When set to 0, the device stays in RUN mode
 */
#define CFG_LPM_SUPPORTED    1

Close print control macro

/**
 * keep debugger enabled while in any low power mode when set to 1
 * should be set to 0 in production
 */
#define CFG_DEBUGGER_SUPPORTED    0//1

/**
 * When set to 1, the traces are enabled in the BLE services
 */
#define CFG_DEBUG_BLE_TRACE     0//1

/**
 * Enable or Disable traces in application
 */
#define CFG_DEBUG_APP_TRACE     0//1

Modify FreeRTOSConfig.h configUSE_TICKLESS_IDLE to be
defined as 1 to use the default vPortSuppressTicksAndSleep to
define to 2 to use the custom vPortSuppressTicksAndSleep

#define configUSE_TICKLESS_IDLE                  2

Select low power consumption mode as stop mode

static void APPE_SysUserEvtRx( void * pPayload )
{
    
    
  UNUSED(pPayload);
  /* Traces channel initialization */
  APPD_EnableCPU2( );

  APP_BLE_Init( );
//  UTIL_LPM_SetOffMode(1U << CFG_LPM_APP, UTIL_LPM_ENABLE);
	UTIL_LPM_SetStopMode(1U << CFG_LPM_APP, UTIL_LPM_ENABLE);
  return;
}

The processing of entering and exiting low-power peripherals is placed in the two functions in the following figure

ConfigEXPECTED_IDLE_TIME_BEFORE_SLEEP in FreeRTOS.h
indicates the number of idle ticks before the system enters low power consumption. The
default value is 2

#ifndef configEXPECTED_IDLE_TIME_BEFORE_SLEEP
	#define configEXPECTED_IDLE_TIME_BEFORE_SLEEP 2
#endif